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qsv: Make the hevc idr_interval consistent with the h264 one

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According to the MediaSDK documentation the idr_interval value has
a different meaning depending on the codec:

    0 in H264 means make every I-frame IDR, in HEVC it means to have
    it only at the beginning.

    1 in H264 means every other I-frame is not-IDR, in HEVC it means
    that every I-frame is IDR.

Keep the behaviour consistent between the two encoders by increasing
by 1 internally the idr_interval value for HEVC.
This commit is contained in:
Luca Barbato 2017-10-17 11:04:57 +00:00
parent 41df62fd67
commit 98afe3fb71
1 changed files with 5 additions and 1 deletions
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6
libavcodec/qsvenc_hevc.c
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@ -181,6 +181,9 @@ static av_cold int qsv_enc_init(AVCodecContext *avctx)
}
}
// HEVC and H264 meaning of the value is shifted by 1, make it consistent
q->qsv.idr_interval++;
ret = ff_qsv_enc_init(avctx, &q->qsv);
if (ret < 0)
return ret;
@ -220,7 +223,8 @@ static av_cold int qsv_enc_close(AVCodecContext *avctx)
static const AVOption options[] = {
QSV_COMMON_OPTS
{ "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
{ "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, -1, INT_MAX, VE, "idr_interval" },
{ "begin_only", "Output an IDR-frame only at the beginning of the stream", 0, AV_OPT_TYPE_CONST, { .i64 = -1 }, 0, 0, VE, "idr_interval" },
{ "load_plugin", "A user plugin to load in an internal session", OFFSET(load_plugin), AV_OPT_TYPE_INT, { .i64 = LOAD_PLUGIN_DEFAULT }, LOAD_PLUGIN_NONE, LOAD_PLUGIN_HEVC_HW, VE, "load_plugin" },
{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_NONE }, 0, 0, VE, "load_plugin" },
{ "hevc_sw", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = LOAD_PLUGIN_HEVC_SW }, 0, 0, VE, "load_plugin" },